This is just from what I heard (not to sure tho). Chinese drama adaptation often change alot from the original plot? Some of them even change too much that the original author couldn't recognize their own story or something. Compare to them, the untamed is still considered loyal to the original plot.
This is just what I've heard from a Chinese youtuber.
It´s great that you liked the drama. Now I´m reading the novel and I like it so far, I´m glad that I watched the drama first because I can understand so much better what´s happening! I love that the novel explains many things that are not shown in the manga, anime, and drama... When I finish I´ll listen to the audios, they say they´re awesome.
Is Untamed worth it? I love this story, I've read the novel, read the manhwa, and watched the anime. I'm just kind of scared to commit to 50hours worth of tv... but if y'all say it's worth it I'll watch it